Gas-engine.



No. 767,549. PATENTED AUG. 16, 1904.

A. s. DIGKISONQ GAS ENGINE.

APPLICATION FILED FEB. 13, 1904. 7

N0 MODEL. 2 SHEETS-SEEET 1.

W [NVENTOR UNITED STATES Patented August 16, 1904.

ADAMS. DICKISON, OF WOODBURY, NEW JERSEY.

GAS-ENGINE.

SPECIFICATION forming part of Letters Patent No. 767,549, dated August16, 1904.

Application filed February 13, 1904. Serial No. 193,395. (No model.)

- T0 (LZZ whom it may concern.-

Be it known thatI, ADAM S. DICKISON, a citizen of the United States,residing at Woodbury, in the county of Gloucester and State of NewJersey, have invented certain new and useful Improvements in GasEngines;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled-in theart to which it appertains to make, and use the same.

This invention relates to gas-engines and other similar motors; and itconsists in the novel construction and combination of the partshereinafter fully described and claimed.

In the drawings, Figure 1 is a vertical section through a gas-engineconstructed according to this, invention. Fig. 2 is a side view of theengine, showing the base in section.

A is the base, and B represents stationary guides secured to the saidbase. C is the cylinder, which is slidable in the said guides.

D is the crank-shaft, which is journaled in suitable bearings d, securedto the base, and (Z is a fly-wheel secured on the said crank-shaft.

The crank-shaft D is provided with two cranks 7) and c, which arearranged opposite to each other, and a third crank b is also provided inline with the crank b, so that the cranks b b are duplicates.

E represents connecting-rods. which engage with the cranks Z) Z) andwhich are pivoted to pins 0, projecting from the cylinder C, so that thesaid cylinder is reciprocated in the guides B when the crank-shaft isrevolved.

F is a-piston which is slidable in the cylinder 0, and f is aconnecting-rod which is pivoted to the piston by a pin f and whichengages with the crank 0. The inner end of the cylinder is open, and itsouter end is closed by a cover G. The admission-pipe g for gas and airis secured to the said cover, and g is the admission-valve, which isoperated automatically or in any other approved manner.

H is the exhaust-valve, which is also carried by the cover G, and h isthe exhaustpipe. These valves are preferably arranged as shown upon thecover; but they may be arranged in any other approved manner at theworking. end of the cylinder.

the said cam-shaft.

I is a revoluble cam for operating the exhaust-valve. This cam issecured on a camshaft-c, which is journaled in suitable bearings i, andJ is a toothed wheel secured on A toothed pinion j of one-half thediameter of the wheel J is journaled on a pin 1', which projects fromthe side of the cylinder C, and la is a crank-pin for re- Volving thesaid pinion. This crank-pin is connected with the pinion in any approvedmanner, and it is preferably secured to a crankplate K, which is securedto the said pinion.

M is an eccentric which is secured upon the crank 6, and m is aneccentric-rod operated by the said eccentric. The eccentric-rod on has alongitudinally-slidable portion or extension m, which is pivoted to thecrank-pin k.

N is a spring arranged between the eccentric-rodm and its extension m.The toothed pinion j gears into the toothed wheel J, so

that the cam-shaft is revolved once during two revolutions of thecrank-shaft.

The piston and the cylinder move simultaneously in opposite directions.A charge of gas and air or other inflammable fluid is drawn into thecylinder during one outstroke of its piston. This charge is compressedduring the next instroke of the piston. The compressed charge is ignitedby any approved igniting mechanism during or at the commence ment of thesecond outstroke of the piston,

and the products of combustion are expelled from the cylinder during thesecond instroke of the piston. The exhaust-valve is held open by its camduring the second instroke of the piston, and at other times it remains.

the said cylinder; of a valve carried by the said cylinder, a toothedwheel and a toothed pinion gearing together and also carried by the saidcylinder, driving devices between the said wheel and the said valve, aneccentric secured on the said crank, and driving connections between thesaid eccentric and the said pinion, the said valve being operated onceduring each two revolutions of the said crank-shaft.

2-. The combination, with a guide, and a crank-shaft provided with acrank; of a powercylinder slidable in the said guide, a rod operativelyconnecting the said cylinder with the said crank, an GXlliLLlSh-VZLlVGcarried by the said cylinder, a cam for operating the said valve, atoothed wheel revolving with the said cam, a toothed pinion supported bythe said cylinder and gearing into the said wheel and provided with acrank-pin, an eccentric carried by the said crank, and an eccentric-rodoperatively connecting the said eccentric with the said crank-pin.

3. The combination, with a slidable powercylinder, and a crank whichoperates it; of an exhaust-valve carried by the said cylinder, a cam foroperating the said valve, a toothed wheel revolving with the saidcam, atoothed pinion supported by the said cylinder and gearing into the saidwheel and provided with a crank-pin, an eccentric carried by the saidcrank, an eccentric-rod secured to the said eccentric and provided witha slidable extension which is connected to the said crank-pin, and aspring connecting the said. eccentric-rod and its extension.

In testimony whereof I have affixed my sig* nature in the presence oftwo witnesses.

ADAM S. DICKISON.

Witnesses:

GEORGE T. HEILIG, W. R. RAVER.

